[IMPALA-8885] Improve parquet version metadata error

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: Impala 3.4.0
• Component/s: Backend
• Labels: supportability
• Target Version: Impala 3.4.0
• Epic Color: ghx-label-7
• Assignee: Tim Armstrong
• Reporter: Tim Armstrong
• Created: 22/Aug/19 22:40
• Updated: 24/Aug/19 00:46
• Resolved: 24/Aug/19 00:44

Description

The error looks like this now:

File 'hdfs://nn/books/books1G.csv' has an invalid version number: .99 This could be due to stale metadata. Try running "refresh s3db.books_s3".

It seems to be reasonably common that this happens because a non-parquet file is being queried in a parquet table.

The error message should say something like "File 'hdfs://nn/books/books1G.csv' has an invalid Parquet version number: .99 and does not appear to be a valid Parquet file. This could be due to stale metadata. Try running "refresh s3db.books_s3"